Performance Analysis of Voice Load Balancing Configuration for Mpls Network and Ip Network with Mutation Testing

Multiprotocol Label Switching technology is an evolving technology that provides the reliable and efficient distribution of the Internet services with high transmission speed and lower delays. The important feature of MPLS network is its Traffic Engineering (TE), which is used to manage the computer network effectively for efficient utilization of network resources such as bandwidth, link utilization etc. MPLS technology is generally used for implementing real-time applications such as voice and video applications because it provides efficient forwarding mechanism, lower network delay, scalability and anticipated results. As network applications such as voice, video are increasingly being used today, so the requirements for fault tolerant networks is also increasing in order to carry sensitive voice or video traffic. The network mechanism to tolerate Faults as provided by MPLS network provides end to end “Quality of Service” .In this paper the performance of Voice load is compared between MPLS network and conventional Internet Protocol (IP) network with load balancing and how MPLS increases the capability of the deployed IP network to transport voice traffic in-between end devices with unexpected failures in between links. In MPLS network, an incoming packet is classified only once as it enters into the MPLS domain and gets assigned label information and then all decisions over the path specified are based upon the attached label and not upon destination IP addresses. OPNET modeler 14.5 is used to simulate IP and MPLS networks and the comparison is made based on some performance metrics such as voice jitter, voice packet end-to-end delay, voice delay variation, voice packet sent and received. The simulation results are analyzed and it shows that MPLS based solution provides better performance in implementing the FTP, VoIP and video application.